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Article History

Received: 12 February 2021

Revised: 26 September 2021

Accepted: 23 November 2021

First Online: 19 January 2022

Competing interests

: AH: is editor of the German and WFBSP guidelines schizophrenia. He has been invited to scientific meetings by Lundbeck, Janssen, and Pfizer, and he received paid speakerships from Desitin, Janssen, Otsuka, and Lundbeck. He was member of Roche, Otsuka, Lundbeck, and Janssen advisory boards. MK: lecture fees or travel grants within the last 3 years: Haema, Janssen-Cilag, Servier. JL: received speaker fees or travel compensation from UCB, Bayer, Roche, Teva and the Cure Huntington’s Disease Initiative (CHDI). His institution has been reimbursed for his role as a principal investigator in trials for UCB and CHDI. His research is funded by the European Huntington’s Disease Initiative and Ministry for Education and Research Baden-Württemberg outside the submitted work, as well as the German Ministry for Education and Research (BMBF). He works for an academic institution, which also offers commercial antibody testing. YY: has been supported by travel grants from Novartis and Sanofi Genzyme, has received an honorarium for active participation in an advisory board by Sanofi Genzyme as well as speaking honoraria by Roche and Sanofi Genzyme. FvP: has received fees as speaker or consultant from Bial, Desitin, Eisai, GW Pharma, Arvelle, and UCB Pharma. AP: has served on advisory boards, given lectures, performed phase 3 studies, or received travel grants within the last 3 years from Boehringer, Janssen-Cilag, MEDICE Arzneimittel Putter GmbH and Co KG, and Shire/Takeda and has authored books and articles on ADHD published by Elsevier, Hogrefe, Schattauer, Kohlhammer, Karger, Springer, Thieme, and Oxford University Press. KD: Steering Committee Neurosciences, Janssen. AN: has received lecture fees from Novartis. FL: consulting activities/lecture fees for/from Biogen, Grifols, Teva, Roche, Merck, Fresenius. LTvE: advisory boards, lectures, or travel grants within the last 3 years: Roche, Eli Lilly, Janssen-Cilag, Novartis, Shire, UCB, GSK, Servier, Janssen and Cyberonics. Other authors declare no competing interests.